66645-40-7

Upstream product

• 2912-62-1 α-chlorophenylacetyl chloride 
• 84661-71-2 5-[(dimethylamino)methylene]-6,7-dihydro-1-benzofuran-4(5H)-one 
• 86799-33-9 5-[1-(Methyl-phenyl-amino)-meth-(E)-ylidene]-6,7-dihydro-5H-benzofuran-4-one 
• 86799-32-8 5-[1-Morpholin-4-yl-meth-(E)-ylidene]-6,7-dihydro-5H-benzofuran-4-one 
• 86799-31-7 5-[1-Piperidin-1-yl-meth-(E)-ylidene]-6,7-dihydro-5H-benzofuran-4-one 
• 86799-30-6 5-[1-Pyrrolidin-1-yl-meth-(E)-ylidene]-6,7-dihydro-5H-benzofuran-4-one 
• 86799-28-2 5-[1-Diethylamino-meth-(E)-ylidene]-6,7-dihydro-5H-benzofuran-4-one 

Relevant academic research and scientific papers

Reaction of Ketenes with N,N-disubstituted α-aminomethyleneketones, XIX. Synthesis of N,N disubstituted 4-amino-3-phenyl-2H-furo[2,3-h]-1-benzopyran-2-ones (4-amino-3-phenylangelicins). Crystal and molecular structure of 3-phenylangelicin

1,4-Cycloaddition of phenylchloroketene to N,N-disubstituted 5-aminomethylene-6,7-dihydrobenzo[b]-furan-4(5H)-ones gave the corresponding adducts, namely N,N-disubstituted 4-amino-3-chloro-3,4,5,6-tetrahydro-3-phenyl-2H-furo[2,3-h]-1-benzopy an-2-ones II,